Your network contains an Active Directory domain named contoso.com. The domain contains two sites named Site1 and Site2. The servers for the sites are configured as shown in the following table.Server name Server role Site name Server1 Domain controller, DNS Site1 Server2 DNS Site2 Server1 hosts a standard primary zone for contoso.com. Server2 hosts a secondary zone for contoso.com.You need to ensure that all DNS replication traffic between Server1 and Server2 is encrypted.What should you do？（）

单项选择题You work as the IT professional in an international company which is named wiikigo. You are experienced in implementing and administering a network operating system. You are specialized in configuring IP addressing and services, configuring name resolution and network access and so on. You are in charge of a domain controller that runs windows server 2008 and the DNS server role. The dns server hosts an active directory-integrated zone for your domain. You need to provide a user with the ability to manage records in the zone. But the user must not so what action should you perform?（）

A.The user permissions on the zone should be granted.
B.The user permissions on the DNS zone should be granted.
C.The user should be added to the DNSUpdateProxy Global security group.
D.The user should be added to the DNSAdmins domain local security group.

单项选择题Your company has an active directory domain. A server named server1 runs the network access policy server role. You need to disable IPv6 for all connections except for the tunnel interface and the IPv6 loopback interface. What should you do?（）

A.Run the netsh ras ipv6 set command.
B.Run the netsh interface ipv6 delete command.
C.Run ipv6.exe and remove the ipv6 protocol.
D.From the local area connection properties, uncheck internet protocol versions 6 (TCP/IPv6).

单项选择题Your company has a main office and a branch office.The network contains two DNS servers named DNS1 and DNS2.DNS1 is located in the main office. DNS1 hosts a primary standard zone named contoso.com. The contoso.com zone is configured to use DNSSEC.DNS2 is located in the branch office. DNS2 is a caching-only DNS server. You need to ensure that client computers in the branch office can receive authoritative responses to queries for contoso.com if a WAN link fails. DNSSEC security must be maintained.What should you configure on DNS2 for contoso.com？（）

A. a conditional forwarder
B. a secondary zone
C. a zone delegation
D. an Active Directory-integrated stub zone

单项选择题Your network contains a DNS server named Server1 that runs Windows Server 2008 R2. You need to ensure that client computers can resolve IPv6 addresses to fully qualified domain names(FQDNs). Which type of resource record should you create？（）

A. Alias (CNAME)
B. Host (A)
C. Host (AAAA)
D. Pointer (PTR)

单项选择题Your company has a single active directory forest that has a domain in north America named na.contoso.com and a domain in south America named sa.contoso.com. the client computers run windows vista. You need to configure the client computes in the America office to improve the name resolution response time for resources in the south America office what should you do?（）

A.Configure a new GPO that disables the local-link multicast name resolution feature. Apply the policy to all the client computers in the north America office.
B.Configure a new GPO that enabled the loca-link multicast name resolution feature. Apply the policy to all the client computers in the North America office.
C.Configure a new GPO that configures the DNS suffix search list option to sa.contoso.com, na.contoso.com. apply the policy to all client computers in the north America office.
D.Configure the priority value for the SRV records on each of the north American domain controllers to 5.